From: Rob Clark <rob@xxxxxx>
Use atomic properties mechanism for CRTC page_flip. This by itself
doesn't accomplish anything, but it avoids having multiple code
paths to do the same thing when nuclear-pageflip and atomic-modeset
are introduced.
---
drivers/gpu/drm/drm_crtc.c | 69 +++++++++++++++++++-------------------------
include/drm/drm_crtc.h | 13 ---------
2 files changed, 30 insertions(+), 52 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 5f310d3..f421fa6a 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -386,9 +386,7 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
struct drm_mode_config *config = &dev->mode_config;
struct drm_crtc *crtc;
struct drm_plane *plane;
- struct drm_mode_set set;
void *state;
- int ret;
state = dev->driver->atomic_begin(dev, NULL);
if (IS_ERR(state)) {
@@ -400,12 +398,7 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
if (crtc->fb == fb) {
/* should turn off the crtc */
- memset(&set, 0, sizeof(struct drm_mode_set));
- set.crtc = crtc;
- set.fb = NULL;
- ret = crtc->funcs->set_config(&set);
- if (ret)
- DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
+ drm_mode_crtc_set_obj_prop(crtc, state, config->prop_fb_id, 0);
}
}
@@ -448,6 +441,7 @@ EXPORT_SYMBOL(drm_framebuffer_remove);
int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs)
{
+ struct drm_mode_config *config = &dev->mode_config;
int ret;
crtc->dev = dev;
@@ -466,6 +460,10 @@ int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
dev->mode_config.num_crtc++;
+ drm_object_attach_property(&crtc->base, config->prop_fb_id, 0);
+ drm_object_attach_property(&crtc->base, config->prop_crtc_x, 0);
+ drm_object_attach_property(&crtc->base, config->prop_crtc_y, 0);
+
out:
mutex_unlock(&dev->mode_config.mutex);
@@ -3773,12 +3771,12 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_mode_crtc_page_flip *page_flip = data;
+ struct drm_mode_config *config = &dev->mode_config;
struct drm_mode_object *obj;
struct drm_crtc *crtc;
- struct drm_framebuffer *fb;
struct drm_pending_vblank_event *e = NULL;
unsigned long flags;
- int hdisplay, vdisplay;
+ void *state;
int ret = -EINVAL;
if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
@@ -3786,11 +3784,22 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
return -EINVAL;
mutex_lock(&dev->mode_config.mutex);
- obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
- if (!obj)
- goto out;
+
+ obj = drm_mode_object_find(dev, page_flip->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", page_flip->crtc_id);
+ ret = -ENOENT;
+ goto out_unlock;
+ }
crtc = obj_to_crtc(obj);
+ state = dev->driver->atomic_begin(dev, crtc);
+ if (IS_ERR(state)) {
+ ret = PTR_ERR(state);
+ goto out_unlock;
+ }
+
if (crtc->fb == NULL) {
/* The framebuffer is currently unbound, presumably
* due to a hotplug event, that userspace has not
@@ -3800,31 +3809,6 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
goto out;
}
- if (crtc->funcs->page_flip == NULL)
- goto out;
-
- obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
- if (!obj)
- goto out;
- fb = obj_to_fb(obj);
-
- hdisplay = crtc->mode.hdisplay;
- vdisplay = crtc->mode.vdisplay;
-
- if (crtc->invert_dimensions)
- swap(hdisplay, vdisplay);
-
- if (hdisplay > fb->width ||
- vdisplay > fb->height ||
- crtc->x > fb->width - hdisplay ||
- crtc->y > fb->height - vdisplay) {
- DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
- fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
- crtc->invert_dimensions ? " (inverted)" : "");
- ret = -ENOSPC;
- goto out;
- }
-
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
ret = -ENOMEM;
spin_lock_irqsave(&dev->event_lock, flags);
@@ -3852,7 +3836,12 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
(void (*) (struct drm_pending_event *)) kfree;
}
- ret = crtc->funcs->page_flip(crtc, fb, e);
+ ret = drm_mode_set_obj_prop(obj, state,
+ config->prop_fb_id, page_flip->fb_id);
+ if (ret)
+ goto out;
+
+ ret = dev->driver->atomic_commit(dev, state, e);
if (ret) {
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
spin_lock_irqsave(&dev->event_lock, flags);
@@ -3863,6 +3852,8 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
}
out:
+ dev->driver->atomic_end(dev, state);
+out_unlock:
mutex_unlock(&dev->mode_config.mutex);
return ret;
}
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 3a622e4..73a8a14 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -358,19 +358,6 @@ struct drm_crtc_funcs {
int (*set_config)(struct drm_mode_set *set);
- /*
- * Flip to the given framebuffer. This implements the page
- * flip ioctl described in drm_mode.h, specifically, the
- * implementation must return immediately and block all
- * rendering to the current fb until the flip has completed.
- * If userspace set the event flag in the ioctl, the event
- * argument will point to an event to send back when the flip
- * completes, otherwise it will be NULL.
- */
- int (*page_flip)(struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- struct drm_pending_vblank_event *event);
-
int (*set_property)(struct drm_crtc *crtc, void *state,
struct drm_property *property, uint64_t val);
};
--
1.7.9.5
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